Celebrating our history. building the future.

Watch our Anniversary Video!

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Transmission

Any configuration. Any voltage. Any terrain.

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Irby is Looking for A Few Good (Line)Men

We’re hiring! Take a look at our careers page for more information.

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Emergency Restoration

Hurricane season is here and we are ready!

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Bozeman Road Distribution Work

Featured Distribution Project

Irby Construction was awarded the Bozeman Road Project in May of 2017 by Entergy Mississippi. The project scope consisted of adding three new circuits out of the existing Bozeman Rd Substation in Madison, MS due to a new transformer addition.

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Port St. Joe to Callaway 230kV Rebuild

Emergency Storm Restoration

Hurricane Michael made landfall on October 10th, 2018 near Mexico Beach, Florida. Duke Energy’s 230kV 34-mile PX line from Port St. Joe to Callaway was damaged beyond repair.

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IRBY CONSTRUCTION COMPANY builds power infrastructure on a turnkey basis. As a premier transmission construction company, we have built high-voltage power line projects that span the entire United States— from the pacific coast to the eastern seaboard. Our work has even taken us to other countries across the globe. Irby also constructs and connects substations and distribution systems. So, our scope of services covers power delivery systems every step of the way—from generation, down the line and into homes and businesses. 

Transmission
Renewables
Distribution
Telecommunications
Substation
Outdoor Lighting
Foundation
Emergency Restoration

We’re Like Family at Irby

We started as a family business and have carried that culture forward. There’s a pride that comes with working here and it shows in our work. Irby Construction Company’s extraordinary record of success can be attributed to our people who are among the most respected, experienced and talented in the industry. More than a company name that has been around for generations, Irby brings to the table a team of people who have been in this business for decades.

Want to learn more about us? Watch the video here or on Vimeo.

Irby Construction: Proud Past, Clear Future from Irby Construction Company on Vimeo.

FEATURED PROJECTS

Hurricanes Helene & Milton Emergency Response

Hurricanes Helene & Milton Emergency Response

September 4, 2025
Destin Resiliency and Rebuild Projects

Destin Resiliency and Rebuild Projects

September 4, 2025
SMT Houston IV BESS Project

SMT Houston IV BESS Project

September 4, 2025
Duke Energy – Mosaic APW AF Line

Duke Energy – Mosaic APW AF Line

September 3, 2025
Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

September 3, 2025
Storm Damage Assessment After Hurricane Ian

Storm Damage Assessment After Hurricane Ian

August 11, 2023
Patterson – S. Nashville 138kV Transmission Line Rebuild Project

Patterson – S. Nashville 138kV Transmission Line Rebuild Project

October 12, 2022
Entergy Harahan-Avondale

Entergy Harahan-Avondale

July 20, 2022
FPL EVolution HUB

FPL EVolution HUB

February 10, 2022
New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

February 1, 2022
Sunshine Gateway Battery Energy Storage Center

Sunshine Gateway Battery Energy Storage Center

August 27, 2021
Manatee Battery Energy Storage Center

Manatee Battery Energy Storage Center

June 22, 2021

WATTS IN THE NEWS

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CAREERS

EMPLOYEE INFO

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WORK WITH US

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CONTACT HR DIRECT:

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CONTACT US:

318 Old Highway 49 South
Richland, Mississippi 39218-9449

Phone: 601-709-4729
Email: [email protected]

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Irby Construction Company

Irby Construction Company

1 day ago

Irby Construction Company
Irby Construction Company is hiring a Substation Quality Assurance / Quality Control (QA/QC) professional in Tulsa, OK, and Lockhart, TX! Candidates should have 4–8 years of substation construction experience and strong knowledge of OSHA standards. Applicants must be legally authorized to work in the United States. No employer sponsorship is offered for this position. To learn more about the position and to apply, visit: www.irbyconstruction.com/careers/ ... See MoreSee Less

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Irby Construction Company

1 day ago

Irby Construction Company
Irby Construction Company is hiring a Substation Estimator II and a Substation Estimating Manager in Tulsa, OK, and Lockhart, TX! Applicants must be legally authorized to work in the United States. No employer sponsorship is offered for these positions. To learn more about the positions and to apply, visit: www.irbyconstruction.com/careers ... See MoreSee Less

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Irby Construction Company

3 days ago

Irby Construction Company
Big congrats to Ricardo Castillo, General Laborer with Legend Foundations Services, for capturing this incredible riverside view at the Pecos River High Bridge in Southwest Texas and earning the top spot in the February Irby Pics Contest!Take your shot – On the job, in the office, or anywhere Irby takes you (just make sure it’s safe). Snap action shots, faces, gear, pets, and more.Share the details – Send your photo(s) to [email protected] along with a description. Tell us who’s pictured, the job number, location, and other pertinent information.#IrbyConstruction #AbsolutePerformance #WeAreQuanta #IrbyPicsContest Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

4 days ago

Irby Construction Company
As we wrap up Women in Construction Week 2026, we’re grateful for the women across our company who lead, support, build, and push our industry forward every single day.Your impact reaches far beyond the jobsite and the office, and we’re proud to celebrate you this week and every week. 💙#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

7 days ago

Irby Construction Company
Introducing Dotty Carr...Dotty serves as an Equipment Administrative Assistant at Irby, joining the team in the spring of 2022. For her, Irby is more than a workplace; it’s a true team environment rooted in family values. “Irby is not just a job; it embodies a sense of teamwork and family. I look forward to coming to work each day, eager to tackle the task ahead and contribute to the team’s success.”Dotty’s positive attitude and dedication help keep our equipment operations running smoothly, supporting the crews and projects that power our communities. We’re grateful to have you in the Irby family, Dotty. 💙#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

7 days ago

Irby Construction Company
Introducing Yesenia Pardo...This April marks four years with Irby for Yesenia, and in that time, she’s held many responsibilities: gaining experience across the field, office, and management teams. That well-rounded perspective allows her to bridge communication gaps and problem-solve in meaningful ways for our crews and projects.Yesenia notes, "I started out my journey in the construction industry nearly twelve years ago. I was raised to take pride in my work - to perform in excellence - the very thing that stood out to me about Irby."Yesenia began with Irby as Assistant Office Manager and has since grown into her role as Office Manager. When sharing about her career, Yesenia said, "I’ve had the privilege to watch the West Region grow into what it is now, and I wouldn’t be where I am if it weren’t for the trailblazers and my team. Irby has taught me so much, and I’m grateful for the trust and opportunities I’ve been given along the way.”We’re proud to celebrate Yesenia and the women who help keep our jobsites and offices running strong. 💙#WomeninConstructionWeek #WIC #WIC2026 #IrbyConstruction #AbsolutePerformance #WeAreQuanta Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).